Energy Management Handbook for Homeowners

Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Energy Management Handbook for Homeowners Fluorescent or compact fluorescent lighting where suitable Exterior insulated doors Soffit vents with ridge vents Windows south exposure and double-pane with low-E coating (provide proper overhang) Wall insulation Water conservation Ceiling insulation Mechanical equipment and other appliances with low operating costs and high efficiencies Caulking and sealing to reduce air leakage Pipes and ducts insulated in unconditioned space Energize Your Home! Floor or crawl space insulation Energy Center P.O. Box 176, Jefferson City, MO 65102-0176 (573) 751-3443 1-800-361-4827 http://www.dnr.state.mo.us/energy Missouri Department of Natural Resources Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com TSimpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Basic Energy Concepts................................................. 1 Heat Loss Indoor Humidity Weather Air Changes.................................................................... 2 Infiltration Pie Infiltration Ratings New-Home Construction ............................................. 3 Caulk/Weatherstrip ..................................................... 4-5 Where to caulk Types of caulk Air Conditioning Efficiency ..................................................................... 6 Window Unit vs. Central Unit Sizing Dehumidification.......................................................... 7 Placement and Maintenance Operating Hints Appliances...................................................................... 8 Life-Cycle Costing EnergyGuide Labels Selecting a Refrigerator............................................. 10 Selecting a Washer and Dryer Selecting a Dishwasher ..............................................11 Appliance and Equipment Cost of Operation................................................12-13-14 Heating ...........................................................................15 Natural Gas Forced Air Hydronic Systems Combustion Air ...........................................................16 Replacement Systems Electric Heating...........................................................17 Heat Pumps Ducts...........................................................................18 Options .......................................................................19 Space Heaters............................................................20 Fireplaces and Gas Logs Insulation Basics...........................................................21 R-Value Recommended R-Values Where to Insulate Insulation, Do-It-Yourself..............................................22 Safety Vapor Barriers Insulation, Attic..............................................................23 Preparation Attic Types Insulation, Crawl Space and Floors ............................24 R-Values, Various Materials..........................................25 Insulation, Walls............................................................26 Basement Below Grade Landscaping ..................................................................27 Xeriscape Gardening Lighting ..........................................................................28 Incandescent Fluorescent Outdoor Lighting Lighting Efficiency Moisture..........................................................................29 How Moisture Acts Window Condensation Reducing Excess Humidity.........................................30 New Construction Ventilation ......................................................................31 Attic Crawl Space Water Heaters ................................................................32 Efficiency Types Water-Saving Hints How to Insulate Water Heaters ....................................33 Water Usage...................................................................34 Indoor Water Usage Lawn Irrigation Other Outdoor Usage Windows.........................................................................35 Glazing Options Storm Windows Missouri Department of Natural Resources Energy Center Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com BSimpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Making your home as energy-efficient as possible is only a part of the process of achieving a more comfortable and less expensive home to operate. Your family’s habits and the weather are important in determining energy usage. This booklet is designed to help you implement retrofit measures as well as evaluate your family’s habits in how they use energy and water. Temperature control is the largest use of energy in a residence. Heat flow always goes from warm areas (inside homes in winter) to cooler ones. This flow of heat can be slowed by something such as insulation that will resist rapid airflow movement. Most homes are heated with gas and/or electricity, but all heat is measured in British thermal units (Btu). Btus are very small (about the heat energy of one wooden kitchen match); therefore, over the period of a year, millions of Btus are consumed to heat water or living space. Heat Loss A typical home loses heat by a combination of three basic heat-transfer processes: 1. CONDUCTION through materials and substances. 2. CONVECTION or transference of heat because of differences in density. This is what people mean when they say heat rises. Actually, warm air (or less dense air) rises. Heat is lost in all directions to cooler areas. Convection heat losses can cause infiltration. 3. RADIATION of heat occurs when heat flows from warm surfaces to cool surfaces independent of the medium between them (such as a warm roof to the clear night sky, or a window surface to the outside air). Insulation will slow heat loss. Air is a very poor conductor of heat; that’s why it is a good insulator. When air pockets are trapped (inside insulation or between panes of glass), they retard the flow of heat. It’s not the substance itself (glass fiber, cellulose, rockwool or foam insulation) that slows heat loss, but the trapped pockets of air that are in or between these materials. Resistance (R) to heat flow is measured in how many hours it takes one Btu to go through one square foot of a mate-rial that is one inch thick and experiencing a one-degree temperature difference. A window that has an R-value of 2 loses heat ten times faster than a wall with an R-value of 20. When you are air conditioning your home, the reverse heat flow occurs from outside to inside the house. Insulation slows that heat flow also. Indoor Humidity Relative humidity is an important comfort factor. A higher relative humidity in winter will make your home feel warmer, and a lower summer humidity will let you feel cooler at moderate temperatures. Savings in energy result from turning the thermostat to a lower winter setting or a higher summer setting. Weather The weather – temperature, relative humidity, wind, cloud cover and sunshine – affect the energy used in maintaining home comfort. Most space heating begins at 65°Fahrenheit. As the outdoor temperature falls below this base, the space heating load increases in proportion to the difference between the two temperatures. This relationship between load and temperature led to the engineering concept of the heating degree-day, or heating degree-hour as an index of the intensi-ty and duration of cold weather. It is defined as the difference between the average temperature for a 24-hour time peri-od and the base temperature of 65°F. The degree-hour concept is somewhat more accurate during periods of “marginal” heating (or cooling) demand. Cooling degree-hours are computed using both an outside temperature and relative humidity. These are shown on your summer utility bill. 1 ... - tailieumienphi.vn